import java.util.HashMap;
import java.util.Map;

public class Solution {
    public String minWindow(String s, String t) {
        char[] s1 = s.toCharArray();
        char[] t1 = t.toCharArray();
        int tl = t.length();
        int left = 0;
        int right = 0;
        Map<Character,Integer> hashmap = new HashMap<>();
        for(int i = 0; i < t.length();i++) {
            int valu = hashmap.get(t1[i]);
            hashmap.put(t1[i],valu + 1);
        }
    }
}
